A pair of spacecraft rocketed toward the moon Saturday on the first mission dedicated to measuring lunar gravity and determining what's inside Earth's orbiting companion - all the way down to the core.
Space Exploration
Sep 10, 2011
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Today’s expected launch of NASA’s Gravity Recovery And Interior Laboratory (GRAIL) twin spacecraft, a carefully choreographed mission to precisely map the moon’s gravitational field, could help scientists understand ...
Space Exploration
Sep 8, 2011
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(PhysOrg.com) -- One of the biggest unsolved problems in astrophysics is that galaxies and galaxy clusters rotate faster than expected, given the amount of existing baryonic (normal) matter. The fast orbits require a larger ...
The "Potsdam Gravity potato", as this representation of terrestrial gravity has become known, can for the first time display gravity variations that change with time. The seasonal fluctuations of the water balance of continents ...
Earth Sciences
Jun 30, 2011
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(PhysOrg.com) -- ESA's XMM-Newton space observatory has watched a faint star flare up at X-ray wavelengths to almost 10 000 times its normal brightness. Astronomers believe the outburst was caused by the star trying to eat ...
Astronomy
Jun 28, 2011
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(PhysOrg.com) -- The galaxies in this cosmic pairing, captured by the Wide Field Imager on the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile, display some curious features, demonstrating that each member ...
Astronomy
Apr 20, 2011
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NASA scientists pored Wednesday over stunning new images of Mercury as their MESSENGER probe began a year-long mission to map the surface of the solar system's least-understood planet.
Space Exploration
Mar 30, 2011
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A desk-sized NASA spacecraft is riding the brakes all the way to Mercury, about to pull a tricky maneuver Thursday night to become the first man-made object to orbit the tiny planet.
Space Exploration
Mar 17, 2011
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After nearly two years in space, the European satellite GOCE has collected the raw data needed to map variations in Earth's gravity field, the European Space Agency has said.
Earth Sciences
Mar 9, 2011
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Japan's first space probe bound for Venus was struggling on Tuesday to enter the planet's orbit, the space agency said.
Space Exploration
Dec 7, 2010
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